390988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 754208

約数和(自身を除く): 363220

約数列:

[1, 2, 4, 13, 26, 52, 73, 103, 146, 206, 292, 412, 949, 1339, 1898, 2678, 3796, 5356, 7519, 15038, 30076, 97747, 195494, 390988]

約数ペア:

[(1, 390988), (2, 195494), (4, 97747), (13, 30076), (26, 15038), (52, 7519), (73, 5356), (103, 3796), (146, 2678), (206, 1898), (292, 1339), (412, 949)]